white noise
Noise having a frequency spectrum that is continuous and uniform over a specified frequency band.
Note: White noise has equal power per hertz over the specified frequency band. Synonym additive white gaussian noise.
Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.
Loading results…
Noise having a frequency spectrum that is continuous and uniform over a specified frequency band.
Note: White noise has equal power per hertz over the specified frequency band. Synonym additive white gaussian noise.
1. A hard copy telephone directory listing of subscriber names, addresses, and telephone numbers.
Note: White pages is associated with the residential subscriber listings in the standard directories distributed by the Bell System before divestiture.
2. An electronic information database that contains user names and their associated network addresses, in the manner of a telephone directory.
Note: Electronic white pages… (Read More →)
In video, a peak excursion of the picture signal in the white direction. [After IEEE-100] [After SMPTE]
In video technology, that point on the chromaticity diagram having the tristimulus of a source appearing white under the viewing conditions; i.e., a spectrally nonselective sample under the illumination of viewing conditions. [After SMPTE]
1. In video teleconferencing, the light from a nonselective diffuse reflector (in the original scene) that is lighted by the normal illumination of the scene; i.e., that white with which the display device simulates reference white of the original scene. [After IEEE 100] [After SMPTE]
2. In the context of video production, the luminance of a white card having 90%… (Read More →)
In facsimile systems, the signal resulting from scanning a minimum-density area, i.e., the white area, of the object.
In a Web page, line feeds, carriage returns, spaces, and other typed characters not visible through the browser display window but considered part of the content of a Web page. [After Bahorsky]
A feature of an Internet videoconferencing program that allows participants to use drawing and/or annotation tools to develop collaborative images or to annotate documents that can be viewed by all videoconference participants simultaneously. [After Bahorsky]
A transmission-control character used for (a) switching on an answer-back unit in the station with which the connection has been established, (b) triggering the receiving unit to transmit an answer-back code to the terminal that transmitted the WRU signal, and (c) initiating a response that might include station identification, an indication of the type of equipment that is in service,… (Read More →)
1. An Internet program or a UNIXTM command that displays personal information ( e.g., full name, address, company name, phone number, e-mail address, and log-in status) for an account holder, which information is also used by an Internet network information center (InterNIC) to enable users to identify the existence of a given domain name or the owner of a given… (Read More →)
Showing 9,361–9,370 of 9,487 results